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O.P.S. Heads 
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Joined: 02 Jan 2013
Location: Iowa
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 Topic: 301 Performance Head Photos
Posted: 13 May 2013 at 6:59pm |
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DougG
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Posted: 13 May 2013 at 7:40pm |
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Very nice,, completely home made or just doctored up ?
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O.P.S. Heads
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Posted: 13 May 2013 at 7:51pm |
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It's a new, solid casting not an OEM head with the water jacket filled. This allows for improved intake and exhaust ports.
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Mikez
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Posted: 13 May 2013 at 7:57pm |
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That's sweet looking. Have you put any on a engine how does it perform
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O.P.S. Heads
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Posted: 13 May 2013 at 8:04pm |
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The first head we made ran on a single turbo, big cube engine in the LLSS class. Although we never did any direct dyno comparisons between it and an OEM head, I think it was a nice improvement performance wise. The flow numbers are considerably more than OEM which allows a larger turbo to be used.
Edited by O.P.S. Heads - 13 May 2013 at 8:05pm
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Mikez
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Posted: 13 May 2013 at 8:17pm |
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Big turbo is always fun lol. Is this your own tractor your running it in. What other engines do you play with
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Dnoym N. S. Can.
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Posted: 13 May 2013 at 8:21pm |
 this is what it look like @ 480 with and 270 height when you up load your picture you can change the size. in Image Properties your size is 1920 with 1080 height what ever you do to one number you have too do to the other number or it will look funny HTH B:-) Dnoym
Edited by Dnoym N. S. Can. - 13 May 2013 at 8:26pm
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O.P.S. Heads
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Posted: 13 May 2013 at 8:25pm |
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The big cube single was mine that I sold to a buddy. That's when this type head was used after he bought it. I have another friend with a twin turbo LLSS model 180. Right now he is still using the OEM head. I don't have a tractor of my own anymore. Haven't for years. Still enjoy tractor pulling and in particular the 301 engine. We struggle to keep up with the red and green tractors around here. The improved head is designed to narrow the gap and last longer than the old OEM heads which my buddy replaces every year due to cracks.
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O.P.S. Heads
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Posted: 13 May 2013 at 8:29pm |
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Dnoym,
I like that size a lot better. Where do you find the "image properties" button??
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DougG
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Posted: 13 May 2013 at 8:35pm |
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I do like messing with the 301 too,, lots of power/ potential outa a small package ,, and always in a One Eighty too!!
Edited by DougG - 13 May 2013 at 8:36pm
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wi50
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Posted: 13 May 2013 at 8:36pm |
Awesome. I'm just curious if the exhaust manifold is on it for some reasons we talked about 
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"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"
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O.P.S. Heads
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Posted: 13 May 2013 at 8:48pm |
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Not on this one(and yes I know what you are talking about). The manifold is there just to illustrate how a stock manifold will fit. The intake side uses the 426 intake manifold bolt pattern so a 426 intercooler will bolt right on if need be.
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Dnoym N. S. Can.
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Posted: 13 May 2013 at 8:51pm |
 in the quick reply message at the bottom of this post you will see the up/side ways arrow hit that button and then click on the picture of the tree that will bring you to the image properties and the image you all readed loaded so if you click on one of your picture you will see on your right where you can see the size so i took and divide them number by 4 B:-) Dnoym
Edited by Dnoym N. S. Can. - 13 May 2013 at 8:58pm
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O.P.S. Heads
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Posted: 13 May 2013 at 8:54pm |
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Thanks a bunch. I'm not all that sharp so I need all the help I can get.
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O.P.S. Heads
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Posted: 13 May 2013 at 9:01pm |
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It's not that you aren't doing a good job of explaining it, but I still am having trouble. I when I get to the tree and click on it, all I am getting is a chance to upload more pics.
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cornbinder
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Posted: 14 May 2013 at 2:40am |
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real nice cyl. head. there is lots of power to be had bye a cyl. head that flows well. can you do that head that the water jackets aren't filled for guys like me that want better performance for guys like me that want to pull and still put their tractor in the field?? or is it strictly for higher rpm pulling?
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Dnoym N. S. Can.
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Posted: 14 May 2013 at 7:42pm |
 you must be useding a hosting site to up load your picture i did fine some more help for you don`t give up your all most there .there people hear that will help you
 Gerald J. wrote:
Or click on the arrow in the reply block header that's
pointed up to the right. That brings up a more versatile editor which
has provision for inserting an image. Go to photoshop and get the link
like Erik says and when you click on the insert image it will have a
place for the image address at photoshop, copy and paste that link,
adjust the size to about 600 x 800 to fit on most user's displays well,
then type your text before and after.
Also note that if you go
back to a post of yours, that when reading it there will be a button up
to the right for post options and one you get is to be able to edit your
posts, to make changes and corrections.
Gerald J.
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ErikR wrote:
OK, on the photobucket webpage that your tractor picture is on... do you see the box marked "image links"?
There are 4 choices, they're marked..... Email & IM, Direct link, HTML code, and IMG code.
click the IMG code, the actual code, not the words "IMG code"..... it should say copied after you do...
Paste the code in the forum reply box
If you're on a Mac.... I'm clueless
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B:-) Dnpym
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mattb
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Posted: 16 May 2013 at 9:52am |
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How much bigger is a 426 valve? Im running a naturally aspirated 301 at 2400 rpm in antique farmstock and looking to get more power out of it.
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lussetto
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Posted: 16 May 2013 at 1:17pm |
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Would like to talk to you about the head set up.
Greg
308-279-0232
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O.P.S. Heads
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Posted: 16 May 2013 at 1:22pm |
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Matt B. The 426 intake valve diameter is 1.835". A stock 301 valve is about 1.600 if I remember right. Depending on your bore diameter you can go with a bigger valve which will yield more flow yet. The ports are big enough. Flow bench results show that an OEM head with 426 valves will flow about 160 - 170 CFM on the intakes with a normal port and polish job. This head was at 240 CFM with 426 valves. The very first head was @ 285 CFM with 2.00 inch dia. valves. I am working to improve the port more yet and the goal is to get 265- 270 with the 426 valve.
Greg,
Email me - opsheads@hotmail.com
Edited by O.P.S. Heads - 16 May 2013 at 1:26pm
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AC200Puller
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Posted: 17 May 2013 at 3:00pm |
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Nice looking head. Do the sleaves have to be cut for the 426 valves on this head?
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O.P.S. Heads
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Posted: 17 May 2013 at 9:18pm |
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The valves in this head are located in the same position as an OEM head so if you are less than 4 1/8 dia. bore you will need to notch the sleeves so the valves will have proper clearance if you are using 426 sized valves.
It is not mandatory to use 426 valves. Depending on how the head is machined, smaller valves could be used.
Edited by O.P.S. Heads - 17 May 2013 at 9:21pm
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AC200Puller
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Posted: 18 May 2013 at 9:24am |
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Ok Thanks. Keep up the good work!
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bkostishion
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Posted: 02 Jun 2015 at 9:17pm |
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do you have any pictures showing how you notched out the sleeves? thanks.
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Ken(MI)
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Posted: 03 Jun 2015 at 7:04am |
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Nice looking work!
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KevinON
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Posted: 07 Jun 2015 at 5:21pm |
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Do your heads work with a 301 twin turbo or do you require more cubes? Very nice work btw.
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